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dsputilenc_mmx.c
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1 /*
2  * MMX optimized DSP utils
3  * Copyright (c) 2000, 2001 Fabrice Bellard
4  * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5  *
6  * This file is part of FFmpeg.
7  *
8  * FFmpeg is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Lesser General Public
10  * License as published by the Free Software Foundation; either
11  * version 2.1 of the License, or (at your option) any later version.
12  *
13  * FFmpeg is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Lesser General Public License for more details.
17  *
18  * You should have received a copy of the GNU Lesser General Public
19  * License along with FFmpeg; if not, write to the Free Software
20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21  *
22  * MMX optimization by Nick Kurshev <nickols_k@mail.ru>
23  */
24 
25 #include "libavutil/attributes.h"
26 #include "libavutil/cpu.h"
27 #include "libavutil/x86/asm.h"
28 #include "libavutil/x86/cpu.h"
29 #include "libavcodec/dct.h"
30 #include "libavcodec/dsputil.h"
31 #include "libavcodec/mpegvideo.h"
32 #include "libavcodec/mathops.h"
33 #include "dsputil_mmx.h"
34 
35 void ff_get_pixels_mmx(int16_t *block, const uint8_t *pixels, int line_size);
36 void ff_get_pixels_sse2(int16_t *block, const uint8_t *pixels, int line_size);
37 void ff_diff_pixels_mmx(int16_t *block, const uint8_t *s1, const uint8_t *s2, int stride);
38 int ff_pix_sum16_mmx(uint8_t * pix, int line_size);
39 int ff_pix_norm1_mmx(uint8_t *pix, int line_size);
40 
41 #if HAVE_INLINE_ASM
42 
43 static int sse8_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {
44  int tmp;
45  __asm__ volatile (
46  "movl %4,%%ecx\n"
47  "shr $1,%%ecx\n"
48  "pxor %%mm0,%%mm0\n" /* mm0 = 0 */
49  "pxor %%mm7,%%mm7\n" /* mm7 holds the sum */
50  "1:\n"
51  "movq (%0),%%mm1\n" /* mm1 = pix1[0][0-7] */
52  "movq (%1),%%mm2\n" /* mm2 = pix2[0][0-7] */
53  "movq (%0,%3),%%mm3\n" /* mm3 = pix1[1][0-7] */
54  "movq (%1,%3),%%mm4\n" /* mm4 = pix2[1][0-7] */
55 
56  /* todo: mm1-mm2, mm3-mm4 */
57  /* algo: subtract mm1 from mm2 with saturation and vice versa */
58  /* OR the results to get absolute difference */
59  "movq %%mm1,%%mm5\n"
60  "movq %%mm3,%%mm6\n"
61  "psubusb %%mm2,%%mm1\n"
62  "psubusb %%mm4,%%mm3\n"
63  "psubusb %%mm5,%%mm2\n"
64  "psubusb %%mm6,%%mm4\n"
65 
66  "por %%mm1,%%mm2\n"
67  "por %%mm3,%%mm4\n"
68 
69  /* now convert to 16-bit vectors so we can square them */
70  "movq %%mm2,%%mm1\n"
71  "movq %%mm4,%%mm3\n"
72 
73  "punpckhbw %%mm0,%%mm2\n"
74  "punpckhbw %%mm0,%%mm4\n"
75  "punpcklbw %%mm0,%%mm1\n" /* mm1 now spread over (mm1,mm2) */
76  "punpcklbw %%mm0,%%mm3\n" /* mm4 now spread over (mm3,mm4) */
77 
78  "pmaddwd %%mm2,%%mm2\n"
79  "pmaddwd %%mm4,%%mm4\n"
80  "pmaddwd %%mm1,%%mm1\n"
81  "pmaddwd %%mm3,%%mm3\n"
82 
83  "lea (%0,%3,2), %0\n" /* pix1 += 2*line_size */
84  "lea (%1,%3,2), %1\n" /* pix2 += 2*line_size */
85 
86  "paddd %%mm2,%%mm1\n"
87  "paddd %%mm4,%%mm3\n"
88  "paddd %%mm1,%%mm7\n"
89  "paddd %%mm3,%%mm7\n"
90 
91  "decl %%ecx\n"
92  "jnz 1b\n"
93 
94  "movq %%mm7,%%mm1\n"
95  "psrlq $32, %%mm7\n" /* shift hi dword to lo */
96  "paddd %%mm7,%%mm1\n"
97  "movd %%mm1,%2\n"
98  : "+r" (pix1), "+r" (pix2), "=r"(tmp)
99  : "r" ((x86_reg)line_size) , "m" (h)
100  : "%ecx");
101  return tmp;
102 }
103 
104 static int sse16_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {
105  int tmp;
106  __asm__ volatile (
107  "movl %4,%%ecx\n"
108  "pxor %%mm0,%%mm0\n" /* mm0 = 0 */
109  "pxor %%mm7,%%mm7\n" /* mm7 holds the sum */
110  "1:\n"
111  "movq (%0),%%mm1\n" /* mm1 = pix1[0-7] */
112  "movq (%1),%%mm2\n" /* mm2 = pix2[0-7] */
113  "movq 8(%0),%%mm3\n" /* mm3 = pix1[8-15] */
114  "movq 8(%1),%%mm4\n" /* mm4 = pix2[8-15] */
115 
116  /* todo: mm1-mm2, mm3-mm4 */
117  /* algo: subtract mm1 from mm2 with saturation and vice versa */
118  /* OR the results to get absolute difference */
119  "movq %%mm1,%%mm5\n"
120  "movq %%mm3,%%mm6\n"
121  "psubusb %%mm2,%%mm1\n"
122  "psubusb %%mm4,%%mm3\n"
123  "psubusb %%mm5,%%mm2\n"
124  "psubusb %%mm6,%%mm4\n"
125 
126  "por %%mm1,%%mm2\n"
127  "por %%mm3,%%mm4\n"
128 
129  /* now convert to 16-bit vectors so we can square them */
130  "movq %%mm2,%%mm1\n"
131  "movq %%mm4,%%mm3\n"
132 
133  "punpckhbw %%mm0,%%mm2\n"
134  "punpckhbw %%mm0,%%mm4\n"
135  "punpcklbw %%mm0,%%mm1\n" /* mm1 now spread over (mm1,mm2) */
136  "punpcklbw %%mm0,%%mm3\n" /* mm4 now spread over (mm3,mm4) */
137 
138  "pmaddwd %%mm2,%%mm2\n"
139  "pmaddwd %%mm4,%%mm4\n"
140  "pmaddwd %%mm1,%%mm1\n"
141  "pmaddwd %%mm3,%%mm3\n"
142 
143  "add %3,%0\n"
144  "add %3,%1\n"
145 
146  "paddd %%mm2,%%mm1\n"
147  "paddd %%mm4,%%mm3\n"
148  "paddd %%mm1,%%mm7\n"
149  "paddd %%mm3,%%mm7\n"
150 
151  "decl %%ecx\n"
152  "jnz 1b\n"
153 
154  "movq %%mm7,%%mm1\n"
155  "psrlq $32, %%mm7\n" /* shift hi dword to lo */
156  "paddd %%mm7,%%mm1\n"
157  "movd %%mm1,%2\n"
158  : "+r" (pix1), "+r" (pix2), "=r"(tmp)
159  : "r" ((x86_reg)line_size) , "m" (h)
160  : "%ecx");
161  return tmp;
162 }
163 
164 static int hf_noise8_mmx(uint8_t * pix1, int line_size, int h) {
165  int tmp;
166  __asm__ volatile (
167  "movl %3,%%ecx\n"
168  "pxor %%mm7,%%mm7\n"
169  "pxor %%mm6,%%mm6\n"
170 
171  "movq (%0),%%mm0\n"
172  "movq %%mm0, %%mm1\n"
173  "psllq $8, %%mm0\n"
174  "psrlq $8, %%mm1\n"
175  "psrlq $8, %%mm0\n"
176  "movq %%mm0, %%mm2\n"
177  "movq %%mm1, %%mm3\n"
178  "punpcklbw %%mm7,%%mm0\n"
179  "punpcklbw %%mm7,%%mm1\n"
180  "punpckhbw %%mm7,%%mm2\n"
181  "punpckhbw %%mm7,%%mm3\n"
182  "psubw %%mm1, %%mm0\n"
183  "psubw %%mm3, %%mm2\n"
184 
185  "add %2,%0\n"
186 
187  "movq (%0),%%mm4\n"
188  "movq %%mm4, %%mm1\n"
189  "psllq $8, %%mm4\n"
190  "psrlq $8, %%mm1\n"
191  "psrlq $8, %%mm4\n"
192  "movq %%mm4, %%mm5\n"
193  "movq %%mm1, %%mm3\n"
194  "punpcklbw %%mm7,%%mm4\n"
195  "punpcklbw %%mm7,%%mm1\n"
196  "punpckhbw %%mm7,%%mm5\n"
197  "punpckhbw %%mm7,%%mm3\n"
198  "psubw %%mm1, %%mm4\n"
199  "psubw %%mm3, %%mm5\n"
200  "psubw %%mm4, %%mm0\n"
201  "psubw %%mm5, %%mm2\n"
202  "pxor %%mm3, %%mm3\n"
203  "pxor %%mm1, %%mm1\n"
204  "pcmpgtw %%mm0, %%mm3\n\t"
205  "pcmpgtw %%mm2, %%mm1\n\t"
206  "pxor %%mm3, %%mm0\n"
207  "pxor %%mm1, %%mm2\n"
208  "psubw %%mm3, %%mm0\n"
209  "psubw %%mm1, %%mm2\n"
210  "paddw %%mm0, %%mm2\n"
211  "paddw %%mm2, %%mm6\n"
212 
213  "add %2,%0\n"
214  "1:\n"
215 
216  "movq (%0),%%mm0\n"
217  "movq %%mm0, %%mm1\n"
218  "psllq $8, %%mm0\n"
219  "psrlq $8, %%mm1\n"
220  "psrlq $8, %%mm0\n"
221  "movq %%mm0, %%mm2\n"
222  "movq %%mm1, %%mm3\n"
223  "punpcklbw %%mm7,%%mm0\n"
224  "punpcklbw %%mm7,%%mm1\n"
225  "punpckhbw %%mm7,%%mm2\n"
226  "punpckhbw %%mm7,%%mm3\n"
227  "psubw %%mm1, %%mm0\n"
228  "psubw %%mm3, %%mm2\n"
229  "psubw %%mm0, %%mm4\n"
230  "psubw %%mm2, %%mm5\n"
231  "pxor %%mm3, %%mm3\n"
232  "pxor %%mm1, %%mm1\n"
233  "pcmpgtw %%mm4, %%mm3\n\t"
234  "pcmpgtw %%mm5, %%mm1\n\t"
235  "pxor %%mm3, %%mm4\n"
236  "pxor %%mm1, %%mm5\n"
237  "psubw %%mm3, %%mm4\n"
238  "psubw %%mm1, %%mm5\n"
239  "paddw %%mm4, %%mm5\n"
240  "paddw %%mm5, %%mm6\n"
241 
242  "add %2,%0\n"
243 
244  "movq (%0),%%mm4\n"
245  "movq %%mm4, %%mm1\n"
246  "psllq $8, %%mm4\n"
247  "psrlq $8, %%mm1\n"
248  "psrlq $8, %%mm4\n"
249  "movq %%mm4, %%mm5\n"
250  "movq %%mm1, %%mm3\n"
251  "punpcklbw %%mm7,%%mm4\n"
252  "punpcklbw %%mm7,%%mm1\n"
253  "punpckhbw %%mm7,%%mm5\n"
254  "punpckhbw %%mm7,%%mm3\n"
255  "psubw %%mm1, %%mm4\n"
256  "psubw %%mm3, %%mm5\n"
257  "psubw %%mm4, %%mm0\n"
258  "psubw %%mm5, %%mm2\n"
259  "pxor %%mm3, %%mm3\n"
260  "pxor %%mm1, %%mm1\n"
261  "pcmpgtw %%mm0, %%mm3\n\t"
262  "pcmpgtw %%mm2, %%mm1\n\t"
263  "pxor %%mm3, %%mm0\n"
264  "pxor %%mm1, %%mm2\n"
265  "psubw %%mm3, %%mm0\n"
266  "psubw %%mm1, %%mm2\n"
267  "paddw %%mm0, %%mm2\n"
268  "paddw %%mm2, %%mm6\n"
269 
270  "add %2,%0\n"
271  "subl $2, %%ecx\n"
272  " jnz 1b\n"
273 
274  "movq %%mm6, %%mm0\n"
275  "punpcklwd %%mm7,%%mm0\n"
276  "punpckhwd %%mm7,%%mm6\n"
277  "paddd %%mm0, %%mm6\n"
278 
279  "movq %%mm6,%%mm0\n"
280  "psrlq $32, %%mm6\n"
281  "paddd %%mm6,%%mm0\n"
282  "movd %%mm0,%1\n"
283  : "+r" (pix1), "=r"(tmp)
284  : "r" ((x86_reg)line_size) , "g" (h-2)
285  : "%ecx");
286  return tmp;
287 }
288 
289 static int hf_noise16_mmx(uint8_t * pix1, int line_size, int h) {
290  int tmp;
291  uint8_t * pix= pix1;
292  __asm__ volatile (
293  "movl %3,%%ecx\n"
294  "pxor %%mm7,%%mm7\n"
295  "pxor %%mm6,%%mm6\n"
296 
297  "movq (%0),%%mm0\n"
298  "movq 1(%0),%%mm1\n"
299  "movq %%mm0, %%mm2\n"
300  "movq %%mm1, %%mm3\n"
301  "punpcklbw %%mm7,%%mm0\n"
302  "punpcklbw %%mm7,%%mm1\n"
303  "punpckhbw %%mm7,%%mm2\n"
304  "punpckhbw %%mm7,%%mm3\n"
305  "psubw %%mm1, %%mm0\n"
306  "psubw %%mm3, %%mm2\n"
307 
308  "add %2,%0\n"
309 
310  "movq (%0),%%mm4\n"
311  "movq 1(%0),%%mm1\n"
312  "movq %%mm4, %%mm5\n"
313  "movq %%mm1, %%mm3\n"
314  "punpcklbw %%mm7,%%mm4\n"
315  "punpcklbw %%mm7,%%mm1\n"
316  "punpckhbw %%mm7,%%mm5\n"
317  "punpckhbw %%mm7,%%mm3\n"
318  "psubw %%mm1, %%mm4\n"
319  "psubw %%mm3, %%mm5\n"
320  "psubw %%mm4, %%mm0\n"
321  "psubw %%mm5, %%mm2\n"
322  "pxor %%mm3, %%mm3\n"
323  "pxor %%mm1, %%mm1\n"
324  "pcmpgtw %%mm0, %%mm3\n\t"
325  "pcmpgtw %%mm2, %%mm1\n\t"
326  "pxor %%mm3, %%mm0\n"
327  "pxor %%mm1, %%mm2\n"
328  "psubw %%mm3, %%mm0\n"
329  "psubw %%mm1, %%mm2\n"
330  "paddw %%mm0, %%mm2\n"
331  "paddw %%mm2, %%mm6\n"
332 
333  "add %2,%0\n"
334  "1:\n"
335 
336  "movq (%0),%%mm0\n"
337  "movq 1(%0),%%mm1\n"
338  "movq %%mm0, %%mm2\n"
339  "movq %%mm1, %%mm3\n"
340  "punpcklbw %%mm7,%%mm0\n"
341  "punpcklbw %%mm7,%%mm1\n"
342  "punpckhbw %%mm7,%%mm2\n"
343  "punpckhbw %%mm7,%%mm3\n"
344  "psubw %%mm1, %%mm0\n"
345  "psubw %%mm3, %%mm2\n"
346  "psubw %%mm0, %%mm4\n"
347  "psubw %%mm2, %%mm5\n"
348  "pxor %%mm3, %%mm3\n"
349  "pxor %%mm1, %%mm1\n"
350  "pcmpgtw %%mm4, %%mm3\n\t"
351  "pcmpgtw %%mm5, %%mm1\n\t"
352  "pxor %%mm3, %%mm4\n"
353  "pxor %%mm1, %%mm5\n"
354  "psubw %%mm3, %%mm4\n"
355  "psubw %%mm1, %%mm5\n"
356  "paddw %%mm4, %%mm5\n"
357  "paddw %%mm5, %%mm6\n"
358 
359  "add %2,%0\n"
360 
361  "movq (%0),%%mm4\n"
362  "movq 1(%0),%%mm1\n"
363  "movq %%mm4, %%mm5\n"
364  "movq %%mm1, %%mm3\n"
365  "punpcklbw %%mm7,%%mm4\n"
366  "punpcklbw %%mm7,%%mm1\n"
367  "punpckhbw %%mm7,%%mm5\n"
368  "punpckhbw %%mm7,%%mm3\n"
369  "psubw %%mm1, %%mm4\n"
370  "psubw %%mm3, %%mm5\n"
371  "psubw %%mm4, %%mm0\n"
372  "psubw %%mm5, %%mm2\n"
373  "pxor %%mm3, %%mm3\n"
374  "pxor %%mm1, %%mm1\n"
375  "pcmpgtw %%mm0, %%mm3\n\t"
376  "pcmpgtw %%mm2, %%mm1\n\t"
377  "pxor %%mm3, %%mm0\n"
378  "pxor %%mm1, %%mm2\n"
379  "psubw %%mm3, %%mm0\n"
380  "psubw %%mm1, %%mm2\n"
381  "paddw %%mm0, %%mm2\n"
382  "paddw %%mm2, %%mm6\n"
383 
384  "add %2,%0\n"
385  "subl $2, %%ecx\n"
386  " jnz 1b\n"
387 
388  "movq %%mm6, %%mm0\n"
389  "punpcklwd %%mm7,%%mm0\n"
390  "punpckhwd %%mm7,%%mm6\n"
391  "paddd %%mm0, %%mm6\n"
392 
393  "movq %%mm6,%%mm0\n"
394  "psrlq $32, %%mm6\n"
395  "paddd %%mm6,%%mm0\n"
396  "movd %%mm0,%1\n"
397  : "+r" (pix1), "=r"(tmp)
398  : "r" ((x86_reg)line_size) , "g" (h-2)
399  : "%ecx");
400  return tmp + hf_noise8_mmx(pix+8, line_size, h);
401 }
402 
403 static int nsse16_mmx(void *p, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {
404  MpegEncContext *c = p;
405  int score1, score2;
406 
407  if(c) score1 = c->dsp.sse[0](c, pix1, pix2, line_size, h);
408  else score1 = sse16_mmx(c, pix1, pix2, line_size, h);
409  score2= hf_noise16_mmx(pix1, line_size, h) - hf_noise16_mmx(pix2, line_size, h);
410 
411  if(c) return score1 + FFABS(score2)*c->avctx->nsse_weight;
412  else return score1 + FFABS(score2)*8;
413 }
414 
415 static int nsse8_mmx(void *p, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {
416  MpegEncContext *c = p;
417  int score1= sse8_mmx(c, pix1, pix2, line_size, h);
418  int score2= hf_noise8_mmx(pix1, line_size, h) - hf_noise8_mmx(pix2, line_size, h);
419 
420  if(c) return score1 + FFABS(score2)*c->avctx->nsse_weight;
421  else return score1 + FFABS(score2)*8;
422 }
423 
424 static int vsad_intra16_mmx(void *v, uint8_t * pix, uint8_t * dummy, int line_size, int h) {
425  int tmp;
426 
427  av_assert2( (((int)pix) & 7) == 0);
428  av_assert2((line_size &7) ==0);
429 
430 #define SUM(in0, in1, out0, out1) \
431  "movq (%0), %%mm2\n"\
432  "movq 8(%0), %%mm3\n"\
433  "add %2,%0\n"\
434  "movq %%mm2, " #out0 "\n"\
435  "movq %%mm3, " #out1 "\n"\
436  "psubusb " #in0 ", %%mm2\n"\
437  "psubusb " #in1 ", %%mm3\n"\
438  "psubusb " #out0 ", " #in0 "\n"\
439  "psubusb " #out1 ", " #in1 "\n"\
440  "por %%mm2, " #in0 "\n"\
441  "por %%mm3, " #in1 "\n"\
442  "movq " #in0 ", %%mm2\n"\
443  "movq " #in1 ", %%mm3\n"\
444  "punpcklbw %%mm7, " #in0 "\n"\
445  "punpcklbw %%mm7, " #in1 "\n"\
446  "punpckhbw %%mm7, %%mm2\n"\
447  "punpckhbw %%mm7, %%mm3\n"\
448  "paddw " #in1 ", " #in0 "\n"\
449  "paddw %%mm3, %%mm2\n"\
450  "paddw %%mm2, " #in0 "\n"\
451  "paddw " #in0 ", %%mm6\n"
452 
453 
454  __asm__ volatile (
455  "movl %3,%%ecx\n"
456  "pxor %%mm6,%%mm6\n"
457  "pxor %%mm7,%%mm7\n"
458  "movq (%0),%%mm0\n"
459  "movq 8(%0),%%mm1\n"
460  "add %2,%0\n"
461  "jmp 2f\n"
462  "1:\n"
463 
464  SUM(%%mm4, %%mm5, %%mm0, %%mm1)
465  "2:\n"
466  SUM(%%mm0, %%mm1, %%mm4, %%mm5)
467 
468  "subl $2, %%ecx\n"
469  "jnz 1b\n"
470 
471  "movq %%mm6,%%mm0\n"
472  "psrlq $32, %%mm6\n"
473  "paddw %%mm6,%%mm0\n"
474  "movq %%mm0,%%mm6\n"
475  "psrlq $16, %%mm0\n"
476  "paddw %%mm6,%%mm0\n"
477  "movd %%mm0,%1\n"
478  : "+r" (pix), "=r"(tmp)
479  : "r" ((x86_reg)line_size) , "m" (h)
480  : "%ecx");
481  return tmp & 0xFFFF;
482 }
483 #undef SUM
484 
485 static int vsad_intra16_mmxext(void *v, uint8_t *pix, uint8_t *dummy,
486  int line_size, int h)
487 {
488  int tmp;
489 
490  av_assert2( (((int)pix) & 7) == 0);
491  av_assert2((line_size &7) ==0);
492 
493 #define SUM(in0, in1, out0, out1) \
494  "movq (%0), " #out0 "\n"\
495  "movq 8(%0), " #out1 "\n"\
496  "add %2,%0\n"\
497  "psadbw " #out0 ", " #in0 "\n"\
498  "psadbw " #out1 ", " #in1 "\n"\
499  "paddw " #in1 ", " #in0 "\n"\
500  "paddw " #in0 ", %%mm6\n"
501 
502  __asm__ volatile (
503  "movl %3,%%ecx\n"
504  "pxor %%mm6,%%mm6\n"
505  "pxor %%mm7,%%mm7\n"
506  "movq (%0),%%mm0\n"
507  "movq 8(%0),%%mm1\n"
508  "add %2,%0\n"
509  "jmp 2f\n"
510  "1:\n"
511 
512  SUM(%%mm4, %%mm5, %%mm0, %%mm1)
513  "2:\n"
514  SUM(%%mm0, %%mm1, %%mm4, %%mm5)
515 
516  "subl $2, %%ecx\n"
517  "jnz 1b\n"
518 
519  "movd %%mm6,%1\n"
520  : "+r" (pix), "=r"(tmp)
521  : "r" ((x86_reg)line_size) , "m" (h)
522  : "%ecx");
523  return tmp;
524 }
525 #undef SUM
526 
527 static int vsad16_mmx(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h) {
528  int tmp;
529 
530  av_assert2( (((int)pix1) & 7) == 0);
531  av_assert2( (((int)pix2) & 7) == 0);
532  av_assert2((line_size &7) ==0);
533 
534 #define SUM(in0, in1, out0, out1) \
535  "movq (%0),%%mm2\n"\
536  "movq (%1)," #out0 "\n"\
537  "movq 8(%0),%%mm3\n"\
538  "movq 8(%1)," #out1 "\n"\
539  "add %3,%0\n"\
540  "add %3,%1\n"\
541  "psubb " #out0 ", %%mm2\n"\
542  "psubb " #out1 ", %%mm3\n"\
543  "pxor %%mm7, %%mm2\n"\
544  "pxor %%mm7, %%mm3\n"\
545  "movq %%mm2, " #out0 "\n"\
546  "movq %%mm3, " #out1 "\n"\
547  "psubusb " #in0 ", %%mm2\n"\
548  "psubusb " #in1 ", %%mm3\n"\
549  "psubusb " #out0 ", " #in0 "\n"\
550  "psubusb " #out1 ", " #in1 "\n"\
551  "por %%mm2, " #in0 "\n"\
552  "por %%mm3, " #in1 "\n"\
553  "movq " #in0 ", %%mm2\n"\
554  "movq " #in1 ", %%mm3\n"\
555  "punpcklbw %%mm7, " #in0 "\n"\
556  "punpcklbw %%mm7, " #in1 "\n"\
557  "punpckhbw %%mm7, %%mm2\n"\
558  "punpckhbw %%mm7, %%mm3\n"\
559  "paddw " #in1 ", " #in0 "\n"\
560  "paddw %%mm3, %%mm2\n"\
561  "paddw %%mm2, " #in0 "\n"\
562  "paddw " #in0 ", %%mm6\n"
563 
564 
565  __asm__ volatile (
566  "movl %4,%%ecx\n"
567  "pxor %%mm6,%%mm6\n"
568  "pcmpeqw %%mm7,%%mm7\n"
569  "psllw $15, %%mm7\n"
570  "packsswb %%mm7, %%mm7\n"
571  "movq (%0),%%mm0\n"
572  "movq (%1),%%mm2\n"
573  "movq 8(%0),%%mm1\n"
574  "movq 8(%1),%%mm3\n"
575  "add %3,%0\n"
576  "add %3,%1\n"
577  "psubb %%mm2, %%mm0\n"
578  "psubb %%mm3, %%mm1\n"
579  "pxor %%mm7, %%mm0\n"
580  "pxor %%mm7, %%mm1\n"
581  "jmp 2f\n"
582  "1:\n"
583 
584  SUM(%%mm4, %%mm5, %%mm0, %%mm1)
585  "2:\n"
586  SUM(%%mm0, %%mm1, %%mm4, %%mm5)
587 
588  "subl $2, %%ecx\n"
589  "jnz 1b\n"
590 
591  "movq %%mm6,%%mm0\n"
592  "psrlq $32, %%mm6\n"
593  "paddw %%mm6,%%mm0\n"
594  "movq %%mm0,%%mm6\n"
595  "psrlq $16, %%mm0\n"
596  "paddw %%mm6,%%mm0\n"
597  "movd %%mm0,%2\n"
598  : "+r" (pix1), "+r" (pix2), "=r"(tmp)
599  : "r" ((x86_reg)line_size) , "m" (h)
600  : "%ecx");
601  return tmp & 0x7FFF;
602 }
603 #undef SUM
604 
605 static int vsad16_mmxext(void *v, uint8_t *pix1, uint8_t *pix2,
606  int line_size, int h)
607 {
608  int tmp;
609 
610  av_assert2( (((int)pix1) & 7) == 0);
611  av_assert2( (((int)pix2) & 7) == 0);
612  av_assert2((line_size &7) ==0);
613 
614 #define SUM(in0, in1, out0, out1) \
615  "movq (%0)," #out0 "\n"\
616  "movq (%1),%%mm2\n"\
617  "movq 8(%0)," #out1 "\n"\
618  "movq 8(%1),%%mm3\n"\
619  "add %3,%0\n"\
620  "add %3,%1\n"\
621  "psubb %%mm2, " #out0 "\n"\
622  "psubb %%mm3, " #out1 "\n"\
623  "pxor %%mm7, " #out0 "\n"\
624  "pxor %%mm7, " #out1 "\n"\
625  "psadbw " #out0 ", " #in0 "\n"\
626  "psadbw " #out1 ", " #in1 "\n"\
627  "paddw " #in1 ", " #in0 "\n"\
628  "paddw " #in0 ", %%mm6\n"
629 
630  __asm__ volatile (
631  "movl %4,%%ecx\n"
632  "pxor %%mm6,%%mm6\n"
633  "pcmpeqw %%mm7,%%mm7\n"
634  "psllw $15, %%mm7\n"
635  "packsswb %%mm7, %%mm7\n"
636  "movq (%0),%%mm0\n"
637  "movq (%1),%%mm2\n"
638  "movq 8(%0),%%mm1\n"
639  "movq 8(%1),%%mm3\n"
640  "add %3,%0\n"
641  "add %3,%1\n"
642  "psubb %%mm2, %%mm0\n"
643  "psubb %%mm3, %%mm1\n"
644  "pxor %%mm7, %%mm0\n"
645  "pxor %%mm7, %%mm1\n"
646  "jmp 2f\n"
647  "1:\n"
648 
649  SUM(%%mm4, %%mm5, %%mm0, %%mm1)
650  "2:\n"
651  SUM(%%mm0, %%mm1, %%mm4, %%mm5)
652 
653  "subl $2, %%ecx\n"
654  "jnz 1b\n"
655 
656  "movd %%mm6,%2\n"
657  : "+r" (pix1), "+r" (pix2), "=r"(tmp)
658  : "r" ((x86_reg)line_size) , "m" (h)
659  : "%ecx");
660  return tmp;
661 }
662 #undef SUM
663 
664 static void diff_bytes_mmx(uint8_t *dst, const uint8_t *src1, const uint8_t *src2, int w){
665  x86_reg i=0;
666  if(w>=16)
667  __asm__ volatile(
668  "1: \n\t"
669  "movq (%2, %0), %%mm0 \n\t"
670  "movq (%1, %0), %%mm1 \n\t"
671  "psubb %%mm0, %%mm1 \n\t"
672  "movq %%mm1, (%3, %0) \n\t"
673  "movq 8(%2, %0), %%mm0 \n\t"
674  "movq 8(%1, %0), %%mm1 \n\t"
675  "psubb %%mm0, %%mm1 \n\t"
676  "movq %%mm1, 8(%3, %0) \n\t"
677  "add $16, %0 \n\t"
678  "cmp %4, %0 \n\t"
679  " jb 1b \n\t"
680  : "+r" (i)
681  : "r"(src1), "r"(src2), "r"(dst), "r"((x86_reg)w-15)
682  );
683  for(; i<w; i++)
684  dst[i+0] = src1[i+0]-src2[i+0];
685 }
686 
687 static void sub_hfyu_median_prediction_mmxext(uint8_t *dst, const uint8_t *src1,
688  const uint8_t *src2, int w,
689  int *left, int *left_top)
690 {
691  x86_reg i=0;
692  uint8_t l, lt;
693 
694  __asm__ volatile(
695  "movq (%1, %0), %%mm0 \n\t" // LT
696  "psllq $8, %%mm0 \n\t"
697  "1: \n\t"
698  "movq (%1, %0), %%mm1 \n\t" // T
699  "movq -1(%2, %0), %%mm2 \n\t" // L
700  "movq (%2, %0), %%mm3 \n\t" // X
701  "movq %%mm2, %%mm4 \n\t" // L
702  "psubb %%mm0, %%mm2 \n\t"
703  "paddb %%mm1, %%mm2 \n\t" // L + T - LT
704  "movq %%mm4, %%mm5 \n\t" // L
705  "pmaxub %%mm1, %%mm4 \n\t" // max(T, L)
706  "pminub %%mm5, %%mm1 \n\t" // min(T, L)
707  "pminub %%mm2, %%mm4 \n\t"
708  "pmaxub %%mm1, %%mm4 \n\t"
709  "psubb %%mm4, %%mm3 \n\t" // dst - pred
710  "movq %%mm3, (%3, %0) \n\t"
711  "add $8, %0 \n\t"
712  "movq -1(%1, %0), %%mm0 \n\t" // LT
713  "cmp %4, %0 \n\t"
714  " jb 1b \n\t"
715  : "+r" (i)
716  : "r"(src1), "r"(src2), "r"(dst), "r"((x86_reg)w)
717  );
718 
719  l= *left;
720  lt= *left_top;
721 
722  dst[0]= src2[0] - mid_pred(l, src1[0], (l + src1[0] - lt)&0xFF);
723 
724  *left_top= src1[w-1];
725  *left = src2[w-1];
726 }
727 
728 #define MMABS_MMX(a,z)\
729  "pxor " #z ", " #z " \n\t"\
730  "pcmpgtw " #a ", " #z " \n\t"\
731  "pxor " #z ", " #a " \n\t"\
732  "psubw " #z ", " #a " \n\t"
733 
734 #define MMABS_MMXEXT(a, z) \
735  "pxor " #z ", " #z " \n\t"\
736  "psubw " #a ", " #z " \n\t"\
737  "pmaxsw " #z ", " #a " \n\t"
738 
739 #define MMABS_SSSE3(a,z)\
740  "pabsw " #a ", " #a " \n\t"
741 
742 #define MMABS_SUM(a,z, sum)\
743  MMABS(a,z)\
744  "paddusw " #a ", " #sum " \n\t"
745 
746 /* FIXME: HSUM_* saturates at 64k, while an 8x8 hadamard or dct block can get up to
747  * about 100k on extreme inputs. But that's very unlikely to occur in natural video,
748  * and it's even more unlikely to not have any alternative mvs/modes with lower cost. */
749 #define HSUM_MMX(a, t, dst)\
750  "movq "#a", "#t" \n\t"\
751  "psrlq $32, "#a" \n\t"\
752  "paddusw "#t", "#a" \n\t"\
753  "movq "#a", "#t" \n\t"\
754  "psrlq $16, "#a" \n\t"\
755  "paddusw "#t", "#a" \n\t"\
756  "movd "#a", "#dst" \n\t"\
757 
758 #define HSUM_MMXEXT(a, t, dst) \
759  "pshufw $0x0E, "#a", "#t" \n\t"\
760  "paddusw "#t", "#a" \n\t"\
761  "pshufw $0x01, "#a", "#t" \n\t"\
762  "paddusw "#t", "#a" \n\t"\
763  "movd "#a", "#dst" \n\t"\
764 
765 #define HSUM_SSE2(a, t, dst)\
766  "movhlps "#a", "#t" \n\t"\
767  "paddusw "#t", "#a" \n\t"\
768  "pshuflw $0x0E, "#a", "#t" \n\t"\
769  "paddusw "#t", "#a" \n\t"\
770  "pshuflw $0x01, "#a", "#t" \n\t"\
771  "paddusw "#t", "#a" \n\t"\
772  "movd "#a", "#dst" \n\t"\
773 
774 #define DCT_SAD4(m,mm,o)\
775  "mov"#m" "#o"+ 0(%1), "#mm"2 \n\t"\
776  "mov"#m" "#o"+16(%1), "#mm"3 \n\t"\
777  "mov"#m" "#o"+32(%1), "#mm"4 \n\t"\
778  "mov"#m" "#o"+48(%1), "#mm"5 \n\t"\
779  MMABS_SUM(mm##2, mm##6, mm##0)\
780  MMABS_SUM(mm##3, mm##7, mm##1)\
781  MMABS_SUM(mm##4, mm##6, mm##0)\
782  MMABS_SUM(mm##5, mm##7, mm##1)\
783 
784 #define DCT_SAD_MMX\
785  "pxor %%mm0, %%mm0 \n\t"\
786  "pxor %%mm1, %%mm1 \n\t"\
787  DCT_SAD4(q, %%mm, 0)\
788  DCT_SAD4(q, %%mm, 8)\
789  DCT_SAD4(q, %%mm, 64)\
790  DCT_SAD4(q, %%mm, 72)\
791  "paddusw %%mm1, %%mm0 \n\t"\
792  HSUM(%%mm0, %%mm1, %0)
793 
794 #define DCT_SAD_SSE2\
795  "pxor %%xmm0, %%xmm0 \n\t"\
796  "pxor %%xmm1, %%xmm1 \n\t"\
797  DCT_SAD4(dqa, %%xmm, 0)\
798  DCT_SAD4(dqa, %%xmm, 64)\
799  "paddusw %%xmm1, %%xmm0 \n\t"\
800  HSUM(%%xmm0, %%xmm1, %0)
801 
802 #define DCT_SAD_FUNC(cpu) \
803 static int sum_abs_dctelem_##cpu(int16_t *block){\
804  int sum;\
805  __asm__ volatile(\
806  DCT_SAD\
807  :"=r"(sum)\
808  :"r"(block)\
809  );\
810  return sum&0xFFFF;\
811 }
812 
813 #define DCT_SAD DCT_SAD_MMX
814 #define HSUM(a,t,dst) HSUM_MMX(a,t,dst)
815 #define MMABS(a,z) MMABS_MMX(a,z)
816 DCT_SAD_FUNC(mmx)
817 #undef MMABS
818 #undef HSUM
819 
820 #define HSUM(a,t,dst) HSUM_MMXEXT(a,t,dst)
821 #define MMABS(a,z) MMABS_MMXEXT(a,z)
822 DCT_SAD_FUNC(mmxext)
823 #undef HSUM
824 #undef DCT_SAD
825 
826 #define DCT_SAD DCT_SAD_SSE2
827 #define HSUM(a,t,dst) HSUM_SSE2(a,t,dst)
828 DCT_SAD_FUNC(sse2)
829 #undef MMABS
830 
831 #if HAVE_SSSE3_INLINE
832 #define MMABS(a,z) MMABS_SSSE3(a,z)
833 DCT_SAD_FUNC(ssse3)
834 #undef MMABS
835 #endif
836 #undef HSUM
837 #undef DCT_SAD
838 
839 static int ssd_int8_vs_int16_mmx(const int8_t *pix1, const int16_t *pix2, int size){
840  int sum;
841  x86_reg i=size;
842  __asm__ volatile(
843  "pxor %%mm4, %%mm4 \n"
844  "1: \n"
845  "sub $8, %0 \n"
846  "movq (%2,%0), %%mm2 \n"
847  "movq (%3,%0,2), %%mm0 \n"
848  "movq 8(%3,%0,2), %%mm1 \n"
849  "punpckhbw %%mm2, %%mm3 \n"
850  "punpcklbw %%mm2, %%mm2 \n"
851  "psraw $8, %%mm3 \n"
852  "psraw $8, %%mm2 \n"
853  "psubw %%mm3, %%mm1 \n"
854  "psubw %%mm2, %%mm0 \n"
855  "pmaddwd %%mm1, %%mm1 \n"
856  "pmaddwd %%mm0, %%mm0 \n"
857  "paddd %%mm1, %%mm4 \n"
858  "paddd %%mm0, %%mm4 \n"
859  "jg 1b \n"
860  "movq %%mm4, %%mm3 \n"
861  "psrlq $32, %%mm3 \n"
862  "paddd %%mm3, %%mm4 \n"
863  "movd %%mm4, %1 \n"
864  :"+r"(i), "=r"(sum)
865  :"r"(pix1), "r"(pix2)
866  );
867  return sum;
868 }
869 
870 #define PHADDD(a, t)\
871  "movq "#a", "#t" \n\t"\
872  "psrlq $32, "#a" \n\t"\
873  "paddd "#t", "#a" \n\t"
874 /*
875  pmulhw: dst[0-15]=(src[0-15]*dst[0-15])[16-31]
876  pmulhrw: dst[0-15]=(src[0-15]*dst[0-15] + 0x8000)[16-31]
877  pmulhrsw: dst[0-15]=(src[0-15]*dst[0-15] + 0x4000)[15-30]
878  */
879 #define PMULHRW(x, y, s, o)\
880  "pmulhw " #s ", "#x " \n\t"\
881  "pmulhw " #s ", "#y " \n\t"\
882  "paddw " #o ", "#x " \n\t"\
883  "paddw " #o ", "#y " \n\t"\
884  "psraw $1, "#x " \n\t"\
885  "psraw $1, "#y " \n\t"
886 #define DEF(x) x ## _mmx
887 #define SET_RND MOVQ_WONE
888 #define SCALE_OFFSET 1
889 
890 #include "dsputil_qns_template.c"
891 
892 #undef DEF
893 #undef SET_RND
894 #undef SCALE_OFFSET
895 #undef PMULHRW
896 
897 #define DEF(x) x ## _3dnow
898 #define SET_RND(x)
899 #define SCALE_OFFSET 0
900 #define PMULHRW(x, y, s, o)\
901  "pmulhrw " #s ", "#x " \n\t"\
902  "pmulhrw " #s ", "#y " \n\t"
903 
904 #include "dsputil_qns_template.c"
905 
906 #undef DEF
907 #undef SET_RND
908 #undef SCALE_OFFSET
909 #undef PMULHRW
910 
911 #if HAVE_SSSE3_INLINE
912 #undef PHADDD
913 #define DEF(x) x ## _ssse3
914 #define SET_RND(x)
915 #define SCALE_OFFSET -1
916 #define PHADDD(a, t)\
917  "pshufw $0x0E, "#a", "#t" \n\t"\
918  "paddd "#t", "#a" \n\t" /* faster than phaddd on core2 */
919 #define PMULHRW(x, y, s, o)\
920  "pmulhrsw " #s ", "#x " \n\t"\
921  "pmulhrsw " #s ", "#y " \n\t"
922 
923 #include "dsputil_qns_template.c"
924 
925 #undef DEF
926 #undef SET_RND
927 #undef SCALE_OFFSET
928 #undef PMULHRW
929 #undef PHADDD
930 #endif /* HAVE_SSSE3_INLINE */
931 
932 #endif /* HAVE_INLINE_ASM */
933 
934 int ff_sse16_sse2(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
935 
936 #define hadamard_func(cpu) \
937 int ff_hadamard8_diff_##cpu (void *s, uint8_t *src1, uint8_t *src2, \
938  int stride, int h); \
939 int ff_hadamard8_diff16_##cpu(void *s, uint8_t *src1, uint8_t *src2, \
940  int stride, int h);
941 
942 hadamard_func(mmx)
943 hadamard_func(mmxext)
944 hadamard_func(sse2)
945 hadamard_func(ssse3)
946 
947 av_cold void ff_dsputilenc_init_mmx(DSPContext *c, AVCodecContext *avctx)
948 {
949  int mm_flags = av_get_cpu_flags();
950  int bit_depth = avctx->bits_per_raw_sample;
951 
952 #if HAVE_YASM
953  if (EXTERNAL_MMX(mm_flags)) {
954  if (bit_depth <= 8)
955  c->get_pixels = ff_get_pixels_mmx;
956  c->diff_pixels = ff_diff_pixels_mmx;
957  c->pix_sum = ff_pix_sum16_mmx;
958 
959  c->pix_norm1 = ff_pix_norm1_mmx;
960  }
961  if (EXTERNAL_SSE2(mm_flags))
962  if (bit_depth <= 8)
963  c->get_pixels = ff_get_pixels_sse2;
964 #endif /* HAVE_YASM */
965 
966 #if HAVE_INLINE_ASM
967  if (mm_flags & AV_CPU_FLAG_MMX) {
968  const int dct_algo = avctx->dct_algo;
969  if (avctx->bits_per_raw_sample <= 8 &&
970  (dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX)) {
971  if(mm_flags & AV_CPU_FLAG_SSE2){
972  c->fdct = ff_fdct_sse2;
973  } else if (mm_flags & AV_CPU_FLAG_MMXEXT) {
974  c->fdct = ff_fdct_mmxext;
975  }else{
976  c->fdct = ff_fdct_mmx;
977  }
978  }
979 
980 
981  c->diff_bytes= diff_bytes_mmx;
982  c->sum_abs_dctelem= sum_abs_dctelem_mmx;
983 
984  c->sse[0] = sse16_mmx;
985  c->sse[1] = sse8_mmx;
986  c->vsad[4]= vsad_intra16_mmx;
987 
988  c->nsse[0] = nsse16_mmx;
989  c->nsse[1] = nsse8_mmx;
990  if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
991  c->vsad[0] = vsad16_mmx;
992  }
993 
994  if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
995  c->try_8x8basis= try_8x8basis_mmx;
996  }
997  c->add_8x8basis= add_8x8basis_mmx;
998 
999  c->ssd_int8_vs_int16 = ssd_int8_vs_int16_mmx;
1000 
1001  if (mm_flags & AV_CPU_FLAG_MMXEXT) {
1002  c->sum_abs_dctelem = sum_abs_dctelem_mmxext;
1003  c->vsad[4] = vsad_intra16_mmxext;
1004 
1005  if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
1006  c->vsad[0] = vsad16_mmxext;
1007  }
1008 
1009  c->sub_hfyu_median_prediction = sub_hfyu_median_prediction_mmxext;
1010  }
1011 
1012  if(mm_flags & AV_CPU_FLAG_SSE2){
1013  c->sum_abs_dctelem= sum_abs_dctelem_sse2;
1014  }
1015 
1016 #if HAVE_SSSE3_INLINE
1017  if(mm_flags & AV_CPU_FLAG_SSSE3){
1018  if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
1019  c->try_8x8basis= try_8x8basis_ssse3;
1020  }
1021  c->add_8x8basis= add_8x8basis_ssse3;
1022  c->sum_abs_dctelem= sum_abs_dctelem_ssse3;
1023  }
1024 #endif
1025 
1026  if(mm_flags & AV_CPU_FLAG_3DNOW){
1027  if(!(avctx->flags & CODEC_FLAG_BITEXACT)){
1028  c->try_8x8basis= try_8x8basis_3dnow;
1029  }
1030  c->add_8x8basis= add_8x8basis_3dnow;
1031  }
1032  }
1033 #endif /* HAVE_INLINE_ASM */
1034 
1035  if (EXTERNAL_MMX(mm_flags)) {
1036  c->hadamard8_diff[0] = ff_hadamard8_diff16_mmx;
1037  c->hadamard8_diff[1] = ff_hadamard8_diff_mmx;
1038 
1039  if (EXTERNAL_MMXEXT(mm_flags)) {
1040  c->hadamard8_diff[0] = ff_hadamard8_diff16_mmxext;
1041  c->hadamard8_diff[1] = ff_hadamard8_diff_mmxext;
1042  }
1043 
1044  if (EXTERNAL_SSE2(mm_flags)) {
1045  c->sse[0] = ff_sse16_sse2;
1046 
1047 #if HAVE_ALIGNED_STACK
1048  c->hadamard8_diff[0] = ff_hadamard8_diff16_sse2;
1049  c->hadamard8_diff[1] = ff_hadamard8_diff_sse2;
1050 #endif
1051  }
1052 
1053  if (EXTERNAL_SSSE3(mm_flags) && HAVE_ALIGNED_STACK) {
1054  c->hadamard8_diff[0] = ff_hadamard8_diff16_ssse3;
1055  c->hadamard8_diff[1] = ff_hadamard8_diff_ssse3;
1056  }
1057  }
1058 
1059  ff_dsputil_init_pix_mmx(c, avctx);
1060 }
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